I've got a stiff neck.

我脖子发僵。

Stiff neck, sensitive to light.

颈梗，对光线敏感。

I see you this stiff neck is not.

我看你这落枕是好不了了。

I woke up with stiff neck.

我似乎落枕了，脖子有些僵硬。

Symptoms can also include a stiff neck and vomiting.

相关症状也包括脖子僵硬和呕吐。